secretary general ban ki-moon heading to cairo. all these diplomatic efforts are also being brought into play. i think, again, it will come down to whether egypt is prepared to exert leverage and pay some capital with its own militant wing to bring hamas into some kind of cease-fire. >> and can the u.s. use as a stick in this diplomacy the billions of dollars in aid that we give to egypt? >> conceivably, that would be possible, norah. i think the u.s. has been very reluctant to play that card so far. one reason we continue to be able to talk to morsi and to talk to the new egypt is that we haven't made each move a trigger for the withdrawal of aid. i think they'd be reluctant to do that. certainly if egypt moves radically toward the hamas position, breaking off the possibility of negotiations that's going to have repercussions. i hear there's a lot of anxiety about the egyptian position. >>> in other mideast related news, former cia director david petraeus told a congressional panel on friday that the cia knew an al qaeda connected